Stovepipe fastener



Filed Dec. 24, 1920 LZ1/argl' I Leomlvte,

Patented Apr. l0, 1923.

UNITED STATES PATuNToFFic-E. A

HARRY J'. LE COMPTE, OF OKLAHOMA, OKLAHOMA..

STOVEPIPE FASTENER.

Application led, December 24, 1920. Serial No. 432,950.

pipe with the improved fastener in'use thereon. I

Figure 2 1s an enlarged sectional view taken in the same direction as' Figure 1v showing one form of the fastener,

Figure 3 is a reproduction ofV Figure 2, but showing a slightly modified form of the fastener.

Figure 4 is a perspective view of the .main portion of the fastener in which thinner sheet metal is used, portions being broken away to show certain holes.

Figure 5 is an elevation View of a modiiied form of screw on still larger scale than Fi res 2 and 3.

direction as Figures 2 and 3 and on the same scale as Figure 5.

Like characters of reference designate like parts in all the figures.

In arranging the improved fastener, .a strip 10 of strap metal or sheet metal 1s employed, one end portion 11 of this strip being foldedlback along one ofits faces, and the other end portion-12.likewise` folded back along its op osite face; thus .forming the stri into au The olded end portion l1 of the strip 10 is provided with a hole 13; the central portion 14 with a hole 15; and the other folded portion 12 with a hole 16 thebholes bemg so alined that a bolt or screw maybe passed through them.

In applying the fastener, the crotch between its central portion 14 and its folded igure 6 is a sectional view in the same end portoin 12 is placed astride the upper edge 17 of the lower sectioh 18 of the stove pipe'19, and the upper section 20 offvsaid i pipe isforced down over said lower section, the lower edge 21 of said section 20 passing down into the crotch between said central portion 14 and the foldedend portion 11 as shown.

It is usually preferable to use a number' of fasteners, for example, three, at each joint of the pipe 19, having them yan equal distanre apart around the pipe.

After the pipe sections 18 and 20 are forced together, holes for bolts or screws may be punched through the walls of the pipe sections to correspond with the holes 13, 15, and 16.

As shown in Figure 2, a bolt 22 may be *A used to hold the parts in assemblage; said bolt passing through the outer folded end portion 11 of the strip 10; through the wall of the upper pipe section 20; through the central portion 14 of the strip; through the wall of the lower pipe section 18; and through the upper folded end portion 12 of said strip; the bolt being provided with a nut 23 which is screwed up tightly to clamp all said parts together.

In place of using the nut 23, the hole 16 of the folded end portion 12 may be screwthreaded to receive the bolt 22.

It is often found convenient 'to make the strip 10 of stove-pipe iron or other sheet material which, however, is too thin to have threads out in it; and 'when the thin metal is used the hole 16 in the thin folded end portion 12 may be made smaller than the holes 13 and 15 and the screw of special tapered form shown in F igurg 5 may be used.,

l this screw splitting the W"metal at one edge of the' opening 16 as at 25 and "engaging said edge as a single thread.

With the parts arranged and 'assembled l in the manner shown, the folded end porl tions 11 and 12 act as washers to prevent 'the bolt 22 or lscrew 24 from being pulled1 through theA walls of the pipe sections 18' and 20. l

When the stove pipe stands vertical the S-shaped fasteners may be used without bolts 22 or screws 24, and will limit the distance that the two pipe sections telescope to ether.

e following is c1aimed:-

A stove pipe fastener comprising a metal.

5 strap shaped .to form oppositely disposed open ended crotches arranged to receive the ends of teleseoped stove pipe sections and removable and replacable means for extension through the fastener for drawing its elements to clamp the ends of the pipe vseetions.

Witness my hand this 3rd day of December, 1920.

HARRY J. LE COTE. 

